STATISTICS OP THE PRODUCTION OP LEAD ORE. 749 



HIGHLAND DISTRICT. 



This district comprises the mines in the vicinity of Highland, Centerville, and the 

 Crow Branch diggings. The furnace is a reverberatory. The amount of ore smelted in 

 the district is not very large; exactly how much could not be ascertained. It is about 

 500,000 pounds per aimum, or seven and a half miUions since 1862. 



Prom the foregoing statistics, the following general results may be deduced. There 

 are now seven reverberatory or Drummond furnaces in operation, with an average daily 

 capacity of 7,000 pounds of ore each; and five blast furnaces of .two hearths, and two of 

 one hearth each, the average capacity per hearth being 100 pigs, -or 10,000 pounds of ore 

 per 24 hours. In addition to these there are nine blast furnaces of two hearths each, 

 not at present worked, but nearly all in good repair. Some of them have been sup- 

 planted by the reverberatory furnace, which is preferred for fine ore, and some by new 

 furnaces built in adjoining localities. 



Combining now the several amounts of lead ore already given as the prodvict of the 

 different districts for the several years since January 1, 1862, we find the total produc- 

 tion of the Wisconsin Lead region to have been aa follows: 



Total Product, Total Product, 



Tear. lbs. Year. lbs. 



1862 17,037,912 1870 13,754409 



1863 15,105,577 1871 13,484,210 



1864 13,014,201 1872 '. 11,622,668 



1865 14,337,895 1873 9,919,734 



1866 14,029,192 1874 9,625,174 



1867 13,820,784 1875 9,179,395 



1868 13,869,619 1876. to Oct. 1st ... . 8,747,543 



1869 13,426,721 



Total from January 1, 1862, to October 1, 1876 190,974,784 



Besides the smelters already mentioned, there are numerous others operating outside 

 of the Wisconsin Lead region, in Illinois and Iowa. The following information was ob- 

 tained relative to their production: 

 The parties smelting in Dubuque are : 



J. & W. G. Walters, annual amount 900,000 fts. 



Goates and Brmiskill, annual amount 900,000 fts. 



Fern and Simpson, aimual amount 650,000 Ks. 



Parties smelting in Galena are : 



Thomas B. Hughlett, annual average since 1862 1 ,800,000 ibs. 



Spensley's Furnace, present annual average 1,000,000 S>s. 



Richard Bowden, or Galena Furnace, smelted aa follows: 



Year 1874 930,000 ffis. 



Tear 1875 850,000 B-s. 



Year 1876, to October 1st 630,000 Rs. 



Hon. Henry Green, of Elizabeth, Illinois, smelted as follows: 



Year Pounds. Year. Pounds. 



1373 575,113 1875 615;406 



IS74.'. 821,720 1876, to October 1st ... . 442,602 



Mr. Green remarks that seven years ago the mineral field which suppKes his furnace 

 produced three tknes as mudi ore as at present. 



